publication . Article . Other literature type . Preprint . 2015

Field limit and nano-scale surface topography of superconducting radio-frequency cavity made of extreme type II superconductor

Kubo, Takayuki;
Open Access
  • Published: 22 Jun 2015 Journal: Progress of Theoretical and Experimental Physics, volume 2,015, page 63G01 (eissn: 2050-3911, Copyright policy)
  • Publisher: Oxford University Press (OUP)
Abstract
The field limit of superconducting radio-frequency cavity made of type II superconductor with a large Ginzburg-Landau parameter is studied with taking effects of nano-scale surface topography into account. If the surface is ideally flat, the field limit is imposed by the superheating field. On the surface of cavity, however, nano-defects almost continuously distribute and suppress the superheating field everywhere. The field limit is imposed by an effective superheating field given by the product of the superheating field for ideal flat surface and a suppression factor that contains effects of nano-defects. A nano-defect is modeled by a triangular groove with a ...
Subjects
arXiv: Condensed Matter::Superconductivity
free text keywords: Superconductivity, Physics, Groove (music), Superconducting radio frequency, Superheating, Niobium, chemistry.chemical_element, chemistry, Penetration depth, Electropolishing, Type-II superconductor, Condensed matter physics, Physics - Accelerator Physics, Condensed Matter - Superconductivity
43 references, page 1 of 3

[1] H. Padamsee, J. Knobloch, and T. Hays, RF Superconductivity for Accelerators (John Wiley, New York, 1998).

[2] T. Behnke, J. E. Brau, B. Foster, J. Fuster, M. Harrison, J. M. Paterson, M. Peskin, M. Stanitzki, N. Walker, and H. Yamamoto, ILC Technical Design Report, Vol. 1, 2013.

[3] A. Grassellino, A. Romanenko, D. Sergatskov, O. Melnychuk, Y. Trenikhina, A. Crawford, A. Rowe, M. Wong, T. Khabiboulline, and F. Barkov, Supercond. Sci. Technol. 26, 102001 (2013).

[4] P. Dhakal, G. Ciovati, G. R. Myneni, K. E. Gray, N. Groll, P. Maheshwari, D. M. McRae, R. Pike, T. Proslier, F. Stevie et al., Phys. Rev. ST Accel. Beams 16, 042001 (2013).

[5] A. Crawford, R. Eichhorn, F. Furuta, G. M. Ge, R. L. Geng, D. Gonnella, A. Grassellino, A. Hocker, G. Hoffstaetter, M. Liepe et al., in Proceedings of IPAC2014, Doresden, Germany (2014), p. 2627, WEPRI062.

[6] A. Romanenko, “Breakthrough Technology for Very High Quality Factors in SRF Cavities,” LINAC14, Geneva, Switzerland (2014), TUIOC02.

[7] D. Gonnella, M. Ge, F. Furuta, M. Liepe, “Nitrogen treated cavity testing at Cornell,” LINAC14, Geneva, Switzerland (2014), THPP016.

[8] F. Furuta, “Status of Cornell SRF R&D,” International Workshop on Future Linear Colliders, LCWS14, Belgrade, Serbia (2014).

[9] R. Geng, “Update on high gradient high efficiency SRF cavities,” International Workshop on Future Linear Colliders, LCWS14, Belgrade, Serbia (2014).

[10] G. Ciovati, P. Dhakal, and A. Gurevich, Appl. Phys. Lett. 104, 092601 (2014).

[11] P. Dhakal, G. Ciovati, P. Kneisel, G. R. Myneni, in Proceedings of IPAC2014, Doresden, Germany (2014), p. 2651, WEPRI069.

[12] S. Posen and M. Liepe, in Proceedings of SRF2013, Paris, France (2013), p. 666, TUP087.

[13] M. Liepe and S. Posen, in Proceedings of SRF2013, Paris, France (2013), p. 773, WEIOA04.

[14] S. Posen and M. Liepe, “Nb3Sn - Present Status and Potential as an Alternative SRF Material,” LINAC14, Geneva, Switzerland (2014), TUIOC03.

[15] G. Mu¨ller, P. Kneisel, D. Mansen, H.Piel, J. Pouryamout, and R. W. Roth, in Proceedings of EPAC1996, Barcelona, Spain (1996), p. 2085, WEP002L.

43 references, page 1 of 3
Powered by OpenAIRE Research Graph
Any information missing or wrong?Report an Issue